User guide

Configuring RADIUS Server Authentication
User Guide 135
2 Click the NT Server tab.
The information appears as shown in the following figure.
3 To identify the host, enter both the host name and the IP address of
the Windows NT network. If you don’t know the IP address of the
host, click Find IP. The IP address is automatically entered.
When typing IP addresses, type the digits and periods in sequence. Do not use the
TAB or arrow key to jump past the periods. For more information on entering IP
addresses, see “Entering IP addresses” on page 38.
4 If you want, enable the checkbox to use local groups.
Windows NT defines two types of groups: global and local. A local group is local to
the security system in which it is created. Global groups contain user accounts from
one domain grouped together as one group name. A global group cannot contain
another global group or a local group.
5 Click OK.
Configuring RADIUS Server Authentication
The Remote Authentication Dial-In User Service (RADIUS) provides
remote users with secure access to corporate networks. RADIUS is a
client-server system that stores authentication information for users,
remote access servers, and VPN gateways in a central user database that
is available to all clients. Authentication for the entire network occurs
from one location.
RADIUS prevents hackers from intercepting and responding to
authentication requests because authentication requests transmit an